Plastic Deformations in Granular Materials with Rotation of Principal Stress Axes
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The paper examines the nature of plastic flow in granular materials under loading that involves rotation of principal stress axes. Examples in engineering practice involve offshore foundations under wave loading, earthquake loading, pavement and railway track foundations, among others. Micro-scale investigations through discrete element modelling (DEM) with a focus to non-coaxiality of incremental plastic strains to stress tensors are presented. Results can enter constitutive models for numerical applications through an amended plasticity flow rule.
KeywordsPrincipal Stress Volumetric Strain Discrete Element Modelling Granular Assembly Principal Stress Direction
This work is jointly funded by the Computer Modelling Group (CMG) and the Natural Science and Engineering Council of Canada through a CRD grant.
- Cai Y (2010) An experimental study of non-coaxial soil behaviour using hollow cylinder testing. PhD Dissertation, Department of Civil Engineering, University of Nottingham, NottinghamGoogle Scholar
- Smilauer V, Catalano E, Chareyre B, Dorofeenko S, Duriez J, Gladky A, Kozicki J, Modenese C, Scholtès L, Sibille L, Stransky J, Thoeni K (2010) Yade reference documentation. In: Smilauer V (ed) The yade project. http://yade-dem.org/doc/